Looking for relatives of the KER and PERCY families

Looking for relatives of the KER and PERCY families

I am trying to find living relatives of the Ker and PERCYfamilies. Planation names were " Huntley "in the parish of Catahoula and "Percy Forest" near Bayou Sara?. I am from LEWIS BAKER KER ( son of Doctor John Ker) and JANE PERCY KER who were married in Concordia Parish about 1853. Jane Percy Ker died Feb. 6, 1864 and Lewis married her sister Susan. Their daughter ( my ggrandmother) Mary Susan Ker married Albert Willis Dunbar of Natchez.Jane is buried in Natchez at the city cemetery but was buried at " Linden" in Natchez.

I would like to know other members of this family.Thank-you for your time,Elizabeth Wardlowwardlow@juno.com